Thank you for such a detailed answer, Loretta Graziano Breuning!
I agree that all this energy I had was the result of the dopamine stimulating me to stay awake. Moreover, I believe I had the serotonin spurts because I felt like I was climbing a kind of social ladder: I got rewarded by the community for having the extraordinal software engineering skills.
The simple reply to the simple answer: I did think over that option to take a nap later, but I also thought I didn’t really need it. I considered my mind to be too energized because of so much multitasking and hard work during the hackathon. It’s not just working, it’s a competition, a kind of sport. I believe our brain in such cases works like a flywheel. When it works much harder than usual it takes time to calm down. It’s like when you work 8 hours per day, you usually can’t easily fall asleep, so it’s recommended to stop working at least 2 hours before you go to bed to rest your mind. But if you work 24/7 for 2 days, you may need a whole day to calm down.
On Sunday, I had a completely different state of mind. I spent 1 hour working in the morning and then I had no thoughts about business at all. I could spend time in a public park and focus on trees, birds, etc.